ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,876, issued on Dec. 9.

"Firearm safety feature" was invented by Ned Forrest Christiansen (Three Rivers, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A novel firearm safety feature includes arresting surfaces for preventing the fall of a hammer in the event of a spontaneous failure of other firearm parts. In a particular embodiment a safety lug has an arresting surface and the hammer has a complementary arresting surface. In the event of a spontaneous failure, the arresting surface and the complementary arresting surface create a positive engagement and prevent the hammer from falling. In another embodiment, a grip safety includes an arresting...